A short overview of measures for securing water resources for irrigated crop production
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A short overview of measures for securing water resources for irrigated crop production. / Jensen, Christian Richardt; Ørum, Jens Erik; Pedersen, Søren Marcus; Andersen, M.N.; Plauborg, Finn; Liu, Fulai; Jacobsen, Sven-Erik.
In: Journal of Agronomy and Crop Science, Vol. 200, No. 5, 2014, p. 333-343.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - A short overview of measures for securing water resources for irrigated crop production
AU - Jensen, Christian Richardt
AU - Ørum, Jens Erik
AU - Pedersen, Søren Marcus
AU - Andersen, M.N.
AU - Plauborg, Finn
AU - Liu, Fulai
AU - Jacobsen, Sven-Erik
N1 - Special Issue: Food Production in Dry Areas of the Mediterranean Region Guest Editor: Sven-Erik Jacobsen
PY - 2014
Y1 - 2014
N2 - Agriculture is the main user of limited fresh water resources in the world. Optimisation of agricultural water resources and their use can be obtained by both agronomical and political incentives. Important options are: reduction of the loss of irrigation water in conveyance before it reaches the farm; selection of water-efficient irrigation methods such as drip and micro-irrigation saving 30-40 % water compared to furrow irrigation; improvement of irrigation scheduling using plant and soil sensors and remote sensing-based models; deficit irrigation (DI) raising the water productivity in the range of 10-50 %; use of saline and wastewater for which modelling tools lately have been developed; introduction of drought and salt-tolerant crops eases the use of DI and use of saline water; improvement of cropping systems with development of conservation agriculture. Further options are: use of the 'virtual water' principles so that water-rich regions secure food supply to dry regions; reduction in waste of food, feed and biofuel from post-harvest to the end consumer; changing of food composition to less water-consuming products; regulating amount of irrigation water by rationing, subsidies or water pricing to support water-saving measures such as use of drip, irrigation scheduling and DI. The potential for water saving for different measures is discussed and estimated. Reduction in waste of food and loss of irrigation water from conveyance source to farm both has a great potential for water saving compared to other measures. How to choose the measures will depend on the local situation, which is ultimately a political choice.
AB - Agriculture is the main user of limited fresh water resources in the world. Optimisation of agricultural water resources and their use can be obtained by both agronomical and political incentives. Important options are: reduction of the loss of irrigation water in conveyance before it reaches the farm; selection of water-efficient irrigation methods such as drip and micro-irrigation saving 30-40 % water compared to furrow irrigation; improvement of irrigation scheduling using plant and soil sensors and remote sensing-based models; deficit irrigation (DI) raising the water productivity in the range of 10-50 %; use of saline and wastewater for which modelling tools lately have been developed; introduction of drought and salt-tolerant crops eases the use of DI and use of saline water; improvement of cropping systems with development of conservation agriculture. Further options are: use of the 'virtual water' principles so that water-rich regions secure food supply to dry regions; reduction in waste of food, feed and biofuel from post-harvest to the end consumer; changing of food composition to less water-consuming products; regulating amount of irrigation water by rationing, subsidies or water pricing to support water-saving measures such as use of drip, irrigation scheduling and DI. The potential for water saving for different measures is discussed and estimated. Reduction in waste of food and loss of irrigation water from conveyance source to farm both has a great potential for water saving compared to other measures. How to choose the measures will depend on the local situation, which is ultimately a political choice.
KW - Cropping systems
KW - Deficit irrigation
KW - Low-quality water
KW - Virtual water
KW - Waste of food and feed
KW - Water pricing and rationing
U2 - 10.1111/jac.12067
DO - 10.1111/jac.12067
M3 - Journal article
AN - SCOPUS:84906944948
VL - 200
SP - 333
EP - 343
JO - Journal of Agronomy and Crop Science
JF - Journal of Agronomy and Crop Science
SN - 0931-2250
IS - 5
ER -
ID: 129917890